Dog Sudoku Level 99 Hint
Find a bone with only two or three available neighboring cells, then test those cells against the row count, column count, and no-touch rule.
Dog Sudoku Level 99 Strategy
Medium Level 99 uses a 8x8 board with 7 bones. Use the row and column dog counts first, then resolve bones with limited neighboring cells.
Dog Sudoku Level 99 Solution
Solution dog cells: R1C3, R1C8, R3C1, R4C6, R5C4, R6C2, R8C5.